/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package servlet;

import java.io.IOException;
import java.sql.ResultSet;
import java.sql.SQLException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import viviendas.Conexion;

/**
 *
 * @author x
 */
public class IniciarSesion extends Conexion {

    /**
     * Processes requests for both HTTP
     * <code>GET</code> and
     * <code>POST</code> methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        HttpSession session = request.getSession();
        try {
            String usuario = request.getParameter("usuario");
            String clave = request.getParameter("clave");
            if (!usuario.equals("") && !clave.equals("")) {
                ResultSet rs = executeQueryList("select * from usuarios where usuario like '" + usuario + "'");
                if (rs.next()) {
                    if (rs.getString("clave").equals(clave)) {
                        session.setAttribute("id_usuario", rs.getString("id_usuario"));
                        session.setAttribute("usuario", rs.getString("nombres") + " " + rs.getString("apellidos"));
                        session.setAttribute("tipo_usuario", rs.getString("id_tipo_usuario"));
                        setSuccessMessage("Bienvenido.");
                    } else {
                        setErrorMessage("Clave incorrecta.");
                    }
                } else {
                    setErrorMessage("Usuario no encontrado.");
                }
            }
        } catch (SQLException ex) {
            System.out.println("Error al iniciar sesion " + ex.getMessage());
        } finally {
            session.setAttribute("successMessage", getSuccessMessage());
            session.setAttribute("errorMessage", getErrorMessage());
            String irA;
            if (!getErrorMessage().equals("")) {
                irA = "login";
            } else {
                irA = "index";
            }
            setSuccessMessage("");
            setErrorMessage("");
                response.sendRedirect(irA + ".jsp");
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP
     * <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP
     * <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
